, or if mirena comes out, tell your healthcare provider. if it comes out, use back-up birth control. mirena may attach to or go through the uterine wall and cause other problems. although uncommon, pregnancy while using mirena can be life threatening and may result in loss of pregnancy or fertility. ovarian cysts may occur, but usually disappear. bleeding and spotting may increase in the first few months and continue to be irregular. periods over time may become shorter, lighter, or even stop. mirena does not protect against hiv or stds. oh, i can wait a little longer. ask about mirena. when you have time. did you know ? if you choose mirena to prevent pregnancy, it's also approved to treat heavy periods. new this morning... 40-thousand cars nd s-u-v's from general motors are being recalled today... over faulty fuel pumpssthe recall involves tte chevrolet cobalt rom 2007 pt 2009... the 2007 chevrolet equinox... the 2007 through 2009 ppntiaccg-5... the 2007 pontiac torrent... and 2007 saturn ion. g-m says the uel pumps in those vehicles could crack and cause a potentially dangerous fuel leak.